Monoblock refraction imaging display device with visual focal length compressing set

Abstract

A monomer fraction image display apparatus with focus compression group comprises a display unit; two first refractor sets located by one side of display unit; located by one side of said display unit to polarizedly refract the sending light from display unit; two reflection units located by same side of display unit towards first refractor set to polarizedly refract the sending light from first refractor set wherein the two first refractor sets are both located between two reflection units; two focus compression units separately located between first refractor set and reflection unit; two second refractor sets located by one side of reflection unit but refractor set isn't located in the line formed by the reflection unit and first refractor set to separately polarizedly refract the passing or reflected light through the reflection unit; two virtual image forming set separately located by the other side of two refractor set to polarizedly refract the light sent from refractor and its image is converted into virtual image through virtual image forming set.

Description

technical field [0001] The invention relates to an image display device, especially an image display device suitable for glasses or helmets. Background technique [0002] In recent years, various audio-visual equipment and display devices have been improved with each passing day. In addition to enhanced functions, thin, light, small, and portable displays are also the mainstream of display development. One of the emerging display devices is virtual reality (virtual reality) technology. The integration of various technologies, such as display technology, computer technology, sensory technology, and sound effect technology, reduces the original large-sized audio-visual equipment to a square inch and becomes a portable glasses-type projection display device. Although the general flat panel display is light in weight, its size is limited by material weight and cost, and it cannot achieve the effect of enlarging the image size and being easy to carry at the same time. Therefore,...

AI Technical Summary

Problems solved by technology

Moreover, in the process of quickly adjusting the focus, a large amount of blood flowing through the microvessels around the eyeball will cause pressure on the eyeball. The high intraocular pressure caused by long-term and frequent adjustment of the focus will not only cause discomfort to the human eye, In severe cases, there may be a risk of retinal detachment! Therefore, if this kind of real image projection device is applied to a glasses-type display device, when the observation time (within a few hours) is prolonged, the intraocular pressure of the observer will increase, resulting in symptoms of dizziness and discomfort, and even severe retinal detachment. Therefore, it is not suitable for young children or those with heart disease or high blood pressure

However, if the real image is projected on the eyeball, if the magnification is to be increased, the distance between the projection lens group and the eyeball needs to be lengthened. In this way, if the image magnification is to be increased, the space occupied by the projection system needs to be increased, which is not practical. Not practical

[0004] In addition, when the user's head moves, the display device that forms a projected real image in the eyes will produce image blur or severe shaking due to ghosting and Doppler effect, so the display quality is not good, and the application field is not wide.

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